import Vue from 'vue'
import Router from 'vue-router'
import Login from './components/Login.vue'
import Home from './components/Home.vue'

Vue.use(Router)

var router= new Router({
  routes: [
    {path:'/',redirect:'/login'},
    {path:'/login',component:Login},
    {path:'/home',component:Home}
  ]
})
// 导航守卫
router.beforeEach((to,from,next)=>{
  // to将要访问的的路径
  // from代表从哪个路径跳转来的
  // next 执行路由
  if(to.path=='/login'){
    next()
  }else{
    if(sessionStorage.getItem('token')){
      next()
    }else{
      next('/login')
    }
  }
})

export default router